Adding attachment for credit-registers.



' F. J. PETERSON.

ADDING ATTACHMENT FOR CREDIT REGISTERS.

. APPLICATION FILED OCT. 28, 191'3. 1,151,123. Patented Aug. 24, 1915.

2 SHEETS-SHEET 1- wgom, WWW

F. I. PETERSON.

ADDING ATTACHMENT FOR CREDIT REGISTERS.

' APILICATION FILED OCT. 28. .1913. 1,151,123. Patented Aug. 24, 1915.

2 SHEETS-SHEET 2- UNITED STATES PATENT OFFICE.

FREDOLF J. PETERSON, 0F SALENL OHIO.

ADDING- ATTACHMENT FOR bREDIT-REGISTERS. I

To all whom it may concern:

Be it known that I, FREDOLF J. PETERSON, a citizen of the United States, residing at Salem, in the county of Columbiana and State of Ohio, have invented a new and useful Improvement in Adding Attachments for Credit-Registers, of which the following is a specification.

My invention relates to improvements in adding attachment for credit registers in which an adding machine is employed in connection with a credit register whereby a credit register especially of the leaf type can be used in the ordinary way when the adding attachment is constructed.

The objectsof the present invention are, first, to provide an attachment whereby the total amount of credits extended for a defi-' nite time, as for instance a days business can be determined; second, to so connect the adding device that at the time a single credit can be added; and third, so arrange the adding attachment that it can be easily operated and the accurate total credit extended easily,

accurately and quickly determined.

' These objects, together with other objects readily apparent to those skilled inthe art, I attain by the construction illustrated in the accompanying drawings, although my invention may be embodied in a variety of other mechanical forms, the construction illustrated being chosen by way of example. In the accompanying drawings, .Figure 1 is a perspective view of the adding attachment. Fig. 2 is a top view partially in horizontal section, the casing or cover being removed. Fig. 3 is a section on line 33, Fig. 2, looking to the left. Fig. 4 is a section on line 4-4, Fig. 2, looking to theright. Fig. 5 is a perspective view of a credit register of the leaf type showing the adding device in proper relative relationship therewith and connected. Fig. 6 is a top view showing the top edge of a portion of the front leaf of a credit register, also showing the proper relative arrangements of "the actuating bars and adding device. Fig. 7 is a vertical section of the adding device showing one set of the actuating levers and their different parts in condition for engagement and one of such parts in dotted llnes in their normal position; Fig. 8 is a section showing a portion of one of the comput ng disks and pick up fingers showing said pick up fingers properly attached.

Similar numerals of reference indicate Specification of Letters Patent.

Application filed. October 28, 1913.

Serial No. 797,762.

corresponding parts in all the figures of the drawing. a

In the accompanying drawing, 1 represents the outer casing or cover of the adding attachment which is substantially of the form shown and should be formed of such a size that it can be properly connected to the desk portion 2 of the credit register cabinet 3. To the end members of the inner casing 1 is attached the bar 4, which bar is provided with the key-way 5. Upon the bar 4 are fixedly mounted the hubs 6 of the disks 7, said hubs and disks 6 and 7 being preferably formed integral, and are held against rotation by means of the keys 8.

Upon the bar 4 are independently and loosely mounted the combined computing and toothed disks 9 and 10, each one of said disks 9 and 10 being preferably formed integral with each other, but may be made separate and attached together in any convenient and well known manner, as the only object is to provide means whereby by the rotation of the toothed disks the computing disks will rotate or move therewith. Upon the peripheries of the computing disks are located figures 0 to 9 inclusive, and for the purpose of compactness the periphery of each computing disk may be provided with a series of figures from 0 to 9 inclusive, each set of figures occupying a portion of the peripheries of the computing disks.

In the drawings each set of fi res is so arranged that they will occupy su stantially one-fourth of. the entire periphery or in other words'four series or sets of complete numerals from 0 to 9 inclusive are designed to be located upon each periphery of the various computing disks 9; but it will be understood that this arrangement can be varied without departing from thenature of the invention.

At the rear of the various disks is located a bar 11, which bar is fixed to the end mem- -members 13 are attached the pointed teeth engaging fingers or bars 14, to which bars are attached the capsor knobs 15. It will be understood that the caps or knobs 15 Patented Aug. 24, 1915.

may be attached in any equivalent mechanical manner as the only object desired to be accomplished isto so attach the caps or knobs that they will be in proper position to manipulate the various keys.

For the purpose of providing means for moving the forward members 13 of the keys to or from the toothed disks 10 the key sections 12 and 13 are pivoted together by means of rivets 16 and for the purpose of making what might be termed a break oint the members 12 are provided with the lips 17, which lips limit the pivotal movements of thekey members 13 in one direction.

To the housing or inclosing frame 1 is attached the top or upper end or portion of the front slotted and curved cover 19, the bottom or lower end of said slotted cover being attached to the bar 20 secured to the casing 1 For the purpose of producing a neat and finished appearance the slotted cover 19 should be provided with the downward extending flange 21, through which flange the connecting screws 22 are passed and seated in the bar 20. The cover 19 is provided with a series of slots 23, at the sides of each of the slots 23 are located the figures from 1 to 9 inclusive, and for the purpose of providing means for properly reading the computing disks 9 from time to time the sight recesses or openings 24 located at the top or upper ends of the slots 23 are provided.

In use the computing disks 9 are actuated from time to time by the actuating keys and the toothed disks 10 and in the beginning of the starting of adding up credits the various computing disks are all brought into such a position that the ciphers will be brought in alinement with the sight apertures 24, at which time the adding attachment is in position to commence the days business or any predetermined period of business. These various computing disks are set by means of the keys as follows: The caps or knobs 15 are grasped by the hand of the operator and the teeth engaging fingers or bars 14 set in the teeth of the toothed disks 10 and moved downward by means of the caps or knobs the desired distance.

For the purpose of limiting the downward movements of the keys together with their different attachments the flanges or forward extensions 25 of the teeth engaging fingers or bars 14 are formed of such a size that they will rest upon the upper face of the horizontal flange 26, or its equivalent.

After the adding attachment has been properly set for use the various keys de-' signed to actuate the computing scales are manipulated substantially as follows: Assuming that the credit designed to be given amounts to $9.57 the first right hand key is placed in the position illustrated in Fig. 1 after which the keys are brought down to their lowermost points and the credit would read on the computing disks $9.57, said figures appearing under the sight apertures 2 These various keys may be manipulated separately or together as desired. In case further credit is desired to be given, the various keys are set and afterward pressed down. In Fig. 1 one of the keys is shown extended and ready to be brought into proper enga ement with the toothed disk 10 directly un er said key.

It will be understood that some means must be provided for picking up the various computing disks from time to time and in order to provide for thus picking up the disks the side faces of the computing disks are provided with the transfer pawls 27, which transfer pawls are pivotally attached by means of the ears 28 and for the purpose of holding said transfer pawls 27 out of engagement with the teeth of the toothed disks 10 except at such times as it is desired to have said pawls engage one of the teeth of the toothed disks, the fixed disks 7 are pro vided, which fixed disks hold the fingers 27 up and away from the teeth.

For the purpose of permitting the transfer pawls to engage the proper tooth the disks 7 are provided with the notches or recesses 29 into which recesses the transfer pawls are permitted to drop a sufficient distance to engage the proper tooth. For the purposeof insuring the proper dropping of the transfer pawls 27 the springs 30 are provided, which springs are connected to the casing 1 and are so arranged that they will press or bear against the top or upper edges of the pawls 27 and press the transfer pawls downward Yind into proper engagement with the proper toothed wheel or disk 10.

The notches 29 should be provided with inclined edges so that as the computing disks move the transfer pawls will gradually drop or ride down the inclined edge, and then up the opposite incline and on to the peripheries of the fixed disk 7. It will also be understood that some provision should be made to prevent the transfer pawls from dropping or turning on their pivotal points other than above described, and in order to pre vent the dropping or turning on their pivotal points, other than above described, and in order to prevent the droppin as they pass around and under the dlsks the pivoted ends of the transfer pawls are formed square for a portion of their width, which square portion abuts against the faces of the computing disks 9.

It will be understood that there should be no backward movement of the various computing disks and in order to prevent this backward movement the springs 31 are provided, which springs are connected to the casing 1 and extend forward and engage the ratchet teeth of the toothed disks 10. It

will also be understood that the hubs 6 should be formed of such a width that the various disks and wheels mounted uponthe shaft or bar 4 will be properly spaced, said hubs acting as spacing thimbles. For the purpose of properly spacing the key members 12 upon the bar 11, suitable spacing thimbles 32 are provided, which thimbles may be loosely mounted upon said bar as their only purpose is to provide suitable means for properly spacing the key members 11. I

To the credit account cabinet is pivotally attached the lever 32, which lever extends downward below the pivotal point of the front or forward leaf 33 and is extended upward above the pivotal point so that when the front leaf 33 is moved into a horizontal position the bottom or lower end of the lever 32 will be moved rarward with reference to the adding attachment proper at which time the bar 34 will be moved rearward, said bar being pivotally connected to the bottom or lower end of the lever 32. To the front or forward end of the bar 34 is attached the cross bolt 35, which cross bolt is formed of sufiicient length to attach the connecting links 36, the number of said links corresponding with the number of computing disks 9, and the number of actuating keys.

The front or forward ends of the connecting links 35 are pivotally connected to the key members 12 and are so connected for the purpose hereinafter described. By providing the bar 34 and the connecting links 35 it will be understood that when the front leaf 33 is brought down into a horizontal position by itself or with any number of leaves of the series of leaves in the credit cabinet the various computing disk keys will be brought down to their lowermost point providing they have been previously set as illustrated in Fig. 1 or in any other position thereby properly registering the amount of credit designed to be given when the front leaf 33 is brought into a lowered or horizontal position.

For the purpose of allowing the computing disk keys to be actuated independent of the credit leaves or regardless of the position of said leaves the connecting links 36 are provided with the elongated slots 37 through which elongated slots the connecting bolt 35 is passed, and for the purpose of preventing any end pull of the bolt 35 the bracket arm 38 is Provided, which bracket arm is attached in any convenient and well known manner to the bar 34 and its opposite or forward end connected to the connecting bolt 35, by which arrangement an even pull is given to both ends of the connecting bolt 35.

It will be understood that before the connecting links 36 are moved or pulled endwise the bolt 35 must be brought to the rear are not brought to their full height, the connecting links 36 will not be brought forward to their full limit, so all of the keys that have been set up, regardless of their relative position will be picked up when the bar or bolt 35 comes in contact with the rear ends of the elongated slots 37. It will also be understood that by providing the elongated slots 37 the keys can be actuated independent of the credit account leaves, owing to the fact that as the connecting links 36 are moved backward by the downward pressure of any given key to actuate a given computing disk the connecting links 36 slide upon the bolt 35 without imparting any movement whatsoever to the bar 34.

For the purpose of assisting in bringing the credit account leaves contained in a credit account register into their vertical positions the credit account cabinet proper is provided with the ordinary and common lever 32, which is constructed and arranged in the usual manner and does not have to do with the present invention, hence no detailed description is deemed necessary as such 'a structure is common and well known in the art.

The lever 32 being pivoted intermediate its ends will be actuated when in the position illustrated in Fig. 7 by the downward movement of the front or forward leaf 33, but will not be actuated whenthe leaves are brought into their vertical position, but when any given computing disk key is moved upward or set for engagement with any particular toothed wheel or disk 10, said lever will be actuated in'the opposite direction from the direction it is actuated by the downward movement of the front or forward leaf 33, it being understood that the lever 32 will not be actuated to its full limitunless a certain key or any particular key is moved upward to its extreme limit, but regardless of the position of the lever or rock bar 32 its bottom or lower end will be brought backward to its full limit when the leaves are brought into a horizontal position. In other words the lever or rock arm 32 may not be in position to be actuated until after the front or forward leaf has been partially lowered or until it comes in contact with the upper free end of said lever or rock arm 32.

Having fully described my invention what I claim as new and desire to secure by Letters Patent, is

1. In an adding machine of the character described, the combination of a casing, a shaft fixed to and carried by said casing, a series of toothed computing wheels loosely mounted upon said shaft, the periphery of vided With a plurality of series of each wheel being provided with a plurality of series of figures from 0 to 9, a cover provided with slots, said cover also provided adapted to actuate the transfer pawls, a shaft carried by said casing and located in the rear of said disks, a series of keys pivoted to said shaft, said keys being pivoted intermediate their ends, means forlimiting the pivotal movement in one direction, said keys rovided with teeth engaging fingers, said ngers adapted to actuate the toothed computing wheels, and finger buttons provided upon the free ends of said keys.

2. In an adding machine of the character described, the combination of a casing, a shaft fixed to and carried by said casing, a series of toothed computing wheels loosely mounted upon said shaft, the periphery of each of said computing wheels bein pro gures from 0 to 9, a cover provided with slots, said cover also provided with figures near the edges of said slots, a series of disks located between said computing wheels and fixedlv mounted upon said shaft, each of said disks provided with a recess in its periphery, a plurality of transfer pawls carried by the computing wheels, oneof said pawls being provided for each series of numbers from 0 to 9 upon each computing wheel, said transfer pawls adapted to travel around the periphery of said disks, springs adapted to throw said pawls into said recesses, a shaft carried by said casing and located in the rear of said disks, a series of keys pivoted to said shaft, said keys being pivoted intermediate their ends, means for limiting the pivotal movement in one direction, said keys provided with teeth engaging fingers and said fingers adapted to actuate the toothed computing wheels, and finger buttons provided upon the free ends of said keys.

In testimony that I claim the above, I have hereunto subscribed my name in the presence of two witnesses.

FREDOLF J. PETERSON.

Witnesses:

SYLVIA BORON, F. W. BOND. 

